List of Exhibitors
- Aurora Energy LLC
- Baltimore Biodiesel Coop
- Bel Air New Car Dealers
- Chesapeake Sustainable Business Alliance
- Chesapeake Wind and Solar
- Cho Benn
- Citizenre ReNu Solar Solution
- Creative Laundry
- Econokorn
- Furbish Company
- GM Fuel Cell Division
- Gorell / Dixie Home Crafters
- Green Building Institute
- Ground Loop Heating & Air
- Huvco
- International Dark Sky Association
- International Energy Academy
- Jack Patchin - Window Restoration
- Lazerfill
- Maryland Biofuels
- MD Energy Adm
- Md Public Service Commission
- Natures Lighting Distribution
- Office Depot
- Office Max
- PEPCO Energy
- Power Up Solar
- Rapid Refill
- Structural Systems Inc
- Sun Mar
- Sustainable Design Group
- Terralogos
- Thermo Technologies
- Wind Current
- Harford Community College (Campus Tours)